TWM486808U - Touch display device - Google Patents

Abstract

The present invention provides a new touch display device. The touch display device has a touch panel, a display panel, a first frame, a second frame and a back plate. The touch panel is disposed on the display panel. The first frame is disposed adjacent to the display panel and has a first supporting surface. The first supporting surface carries the touch panel. The second frame is connected with the first frame and has a second supporting surface. The second supporting surface carries the display panel. The back plate is accommodated the touch panel, the display panel, the first frame and the second frame, and the back plate is assembled with the first frame or the second frame.

Description

Touch display device

The present invention relates to a touch display device, and more particularly to a touch display device that is easy to rework.

With the continuous advancement of technology, various information devices are constantly being introduced, such as mobile phones, tablet computers, ultra-thin notebooks, and satellite navigation. In addition to keyboard or mouse input or manipulation, the use of touch technology to manipulate information devices is a fairly intuitive and popular way to manipulate. Among them, the touch display device has a user-friendly and intuitive input operation interface, so that users of any age can directly select or manipulate the information device with a finger or a stylus.

An on-cell touch device is provided with a touch panel including a sensing electrode layer on the display panel to form a touch display panel. In the prior art, the touch panel is adhered to the display panel by an adhesive layer (for example, a word glue). Wherein, the adhesive layer is adhered to the display panel and fixed on the display panel, although the purpose of bonding and fixing can be achieved. However, when the touch panel or the display panel fails and needs to be replaced, the entire touch display panel needs to be removed. And the tool can be replaced by the tool to separate the touch panel and the display panel, so the process is quite complicated. In addition, since the touch panel and the display panel are both relatively thin and fragile components, the touch panel and the display panel are easily broken during the process of separating the touch panel and the display panel, so that the loss is greater.

Therefore, how to provide a novel touch display device has the advantages of easy disassembly and reassembly, and has become one of the current important issues.

In view of the above problems, the purpose of the present invention is to provide a touch display device having the advantages of being easy to rework.

In order to achieve the above object, a touch display device according to the present invention includes a touch surface. a board, a display panel, a first frame member, a second frame member and a back plate. The first frame member is adjacent to the display panel and has a first bearing surface, and the first bearing surface carries the touch panel. The second frame member is connected to the first frame member and has a second bearing surface. The bearing surface carries the display panel such that the touch panel is opposite to the display panel. The back panel accommodates the touch panel and the display panel, and the back panel is engaged with the first frame member or the second frame member.

In an embodiment, the second frame member has a protruding portion, the protruding portion has a second bearing surface and a side surface, and an extending direction of the side surface and an extending direction of the display surface of the display panel have an angle, the angle is less than 90 and greater than 0 degrees, preferably between 30 degrees and 60 degrees.

In one embodiment, the touch display device further includes a buffer member disposed between the second bearing surface and the display panel.

In an embodiment, the manner in which the first frame member and the second frame member are coupled includes snapping, screwing or bonding, or any combination thereof.

In an embodiment, the material of the first frame member or the second frame member comprises metal or plastic.

In one embodiment, the touch display device further includes a flexible circuit board coupled to the touch panel and having a connection region between the first bearing surface of the first frame member and the touch panel.

In one embodiment, the touch display device further includes a protection member that accommodates the back panel and is connected to one side of the touch panel. The flexible circuit board has at least one bent portion, and the bent portion is located at the protection member and Between the first frame member, the second frame member and the back plate.

In one embodiment, the touch display device further includes a first protection member and a second protection member. The first protection member is coupled to the second protection member and houses the back plate.

In an embodiment, the first frame member has an upright portion, and the first protection member is coupled to the upright portion.

In one embodiment, one surface of the first protection member is substantially in the same plane as the touch surface of the touch panel.

According to the above, the touch display device according to the present invention carries the touch panel by the first bearing surface of the first frame member and the second frame member by the second frame member connected to the first frame member. The carrying surface carries the display panel such that the touch panel and the display panel are opposite to each other. With this, with the knowledge In contrast, since the first frame member and the second frame member respectively carry the touch panel and the display panel, and the touch panel is adhered to the display panel without using an adhesive layer, when the touch panel or the display panel occurs When the fault requires heavy work, the touch panel and the display panel can be easily separated from the floor without special tools, so that the touch panel and the display panel are not broken and the loss is caused. Therefore, the touch display device of the present invention has the advantage of being easy to rework.

1, 1a~1c‧‧‧ touch display device

11‧‧‧Touch panel

111‧‧‧ touch surface

12‧‧‧ display panel

121‧‧‧First substrate

122‧‧‧second substrate

123, 124‧‧‧ Optical film

13, 13a, 13c‧‧‧ first frame

1301‧‧‧First bearing surface

131, 142‧‧‧ erect

14, 14a‧‧‧ second frame

1402‧‧‧Second bearing surface

141, 221‧‧ ‧ protruding parts

1411‧‧‧ side

15, 15a‧‧‧ Backplane

161, 162‧‧‧ cushioning parts

17‧‧‧Backlight module

171‧‧‧reflector

172‧‧‧Light guide plate

173~175‧‧‧Optical diaphragm

18‧‧‧Soft circuit board

181‧‧‧Bend

19, 2 ‧ ‧ protective parts

21‧‧‧First protection

211‧‧‧ recess

212‧‧‧ surface

22‧‧‧Second protective parts

23‧‧‧ functional film

24‧‧‧Adhesive parts

25‧‧‧Carmen

26‧‧‧ screws

D1, d2‧‧‧ shortest distance

D3‧‧‧Width

D4‧‧‧distance

X‧‧‧ first direction

Y‧‧‧second direction

Θ‧‧‧ angle

FIG. 1A is a partial cross-sectional view showing a touch display device according to a preferred embodiment of the present invention.

FIG. 1B is a schematic view showing the connection of the first frame member and the second frame member of FIG. 1A.

FIG. 2A to FIG. 2C are respectively partial cross-sectional views of the touch display device according to different embodiments of the present invention.

The touch display device according to the preferred embodiment of the present invention will be described with reference to the related drawings, wherein the same elements will be described with the same reference numerals. The illustrations of all the implementations of this creation are merely illustrative and do not represent true dimensions and proportions.

1A and FIG. 1B, FIG. 1A is a partial cross-sectional view of a touch display device 1 according to a preferred embodiment of the present invention, and FIG. 1B is a first frame member 13 and a second frame of FIG. 1A. A schematic diagram of the connection of the piece 14. 1B shows only the touch panel 11, the first frame member 13 and the second frame member 14 of FIG. 1A, and other components of the touch display device 1 are not shown. In addition, the touch display device 1 is, for example, but not limited to, a liquid crystal touch display device having a touch function or an organic light emitting diode touch display device, or another form of touch display device having a touch function.

The touch display device 1 includes a touch panel 11 , a display panel 12 , a first frame member 13 , a second frame member 14 , and a back plate 15 .

As shown in FIG. 1A, the touch panel 11 is disposed opposite to the display panel 12. The touch panel 11 has a touch electrode layer (not shown). In addition, the touch panel 11 further has a touch surface 111, and a horizontal extending direction along one of the touch surfaces 111 is defined as a first direction X, and a direction of the vertical touch surface 111 is defined as a second direction Y. The first direction X is substantially perpendicular to the second direction Y.

The display panel 12 can be a liquid crystal display panel (LCD) or an organic light emitting diode display panel (OLED), or other forms of flat display panels. The display panel 12 of this embodiment is exemplified by a liquid crystal display panel. The liquid crystal display panel (display panel 12) has a first substrate 121, a second substrate 122, and at least one optical film. The first substrate 121 is disposed opposite to the second substrate 122. The first substrate 121, the second substrate 122, and the touch panel 11 of the display panel 12 can be a glass substrate or a high-hardness PMMA substrate, respectively, so that the touch display device 1 can be lightened and thinned. In addition, the first substrate 121 of the embodiment is a color filter substrate, and the second substrate 122 is a thin film transistor substrate. However, in other embodiments, the black matrix on the color filter substrate (black matrix) And the filter layer may be separately disposed on the thin film transistor substrate, so that the second substrate 122 becomes a BOA (BM on array) substrate, or becomes a COA (color filter on array) substrate, and is not limited thereto. . In addition, the display panel 12 may further have a liquid crystal layer (not shown), and the liquid crystal layer is sandwiched between the first substrate 121 and the second substrate 122.

In addition, the display panel 12 of the present embodiment is exemplified by having two optical films 123 and 124. The optical film 123 is an upper polarizing plate, and the optical film 124 is a lower polarizing plate. The optical film 123 (the upper polarizing plate) is disposed between the first substrate 121 and the touch panel 11 , and the optical film 124 (the lower polarizing plate) is disposed on a side of the second substrate 122 away from the first substrate 121 . Here, the optical film 123 is located on the upper side surface of the first substrate 121, and the optical film 124 is located on the lower side surface of the second substrate 122. However, in other implementations, if the display panel 12 is an organic light emitting diode display panel, the optical film may be omitted or the number may be one, and is, for example but not limited to, a circle of 1/4 λ. A polarizing plate, a polarizing plate or an anti-reflection film, or a combination thereof, is located between the first substrate 121 and the touch panel 11. In addition, the touch display device 1 of the present embodiment further includes a functional film 23 disposed between the touch panel 11 and the optical film 123. Here, the functional film 23 is an anti-scattering film and has an explosion-proof function. The material of the functional film 23 can be, for example but not limited to, comprising Polyethylene Terephthalate (PET), Triacetyl Cellulose (TAC), poly-methylmethacrylate (PMMA), Or a combination thereof. Since the functional film 23 is located between the touch panel 11 and the display panel 12, when the touch panel 11 is accidentally broken, the broken glass can be prevented from flying out and the other parts or users of the touch display device 1 are damaged.

In addition, the touch display device 1 of the present embodiment further includes a backlight module 17 disposed opposite to the display panel 12 and emitting light to the display panel 12 to enable the display panel 12 to display images. The backlight module 17 includes a reflective plate 171, a light guide plate 172, and a plurality of optical films 173, 174, and 175 from bottom to top. The optical films 173, 174, and 175 are respectively, for example but not limited to, light collecting sheets or diffusing sheets. The backlight module 17 is not the focus of the present invention. Those skilled in the art will be able to understand the relative arrangement relationship and its functions, and the present description will not be described. When the display panel 12 is an organic light emitting diode display panel, since the organic light emitting diode display panel is a self-luminous panel, the backlight module 17 is not provided.

The first frame member 13 is disposed adjacent to the display panel 12 and has a first bearing surface 1301. The first frame member 13 carries the touch panel 11 by the first bearing surface 1301. In this embodiment, the first frame member 13 can be placed on the first bearing surface 1301 by the adhesive member 24, so that the first frame member 13 can carry the touch panel 11. Here, the adhesive member 24 is, for example but not limited to, a double-sided tape (for example, bezel tape) for fixing the touch panel 11 to the first frame member 13.

In addition, the shortest distance d1 between the first bearing surface 1301 of the first frame member 13 in the second direction Y and the touch surface 111 is between 0.7 millimeters (mm) and 1.5 millimeters, and the preferred value is 1.3. Mm. In addition, the first frame member 13 has an upright portion 131 , and the upright portion 131 is connected to the first bearing surface 1301 and adjacent to the touch panel 11 . The shortest distance d2 between the upright portion 131 and the touch panel 11 in the first direction X is between 0.15 mm and 0.3 mm, and the preferred value is 0.2 mm. Further, the width d3 of the upright portion 131 in the first direction X is between 0.6 mm and 1.0 mm, and preferably 0.8 mm. In addition, the distance d4 between the first substrate 121 and the touch panel 11 in the second direction Y is between 0.25 mm and 0.6 mm, and the preferred value is 0.4 mm.

The second frame member 14 is connected to the first frame member 13 and has a second bearing surface 1402. The second frame member 14 carries the display panel 12 by the second bearing surface 1402 to enable the touch panel 11 and the display panel. 12 can be set opposite. The connection manner of the first frame member 13 and the second frame member 14 may include engaging, locking or bonding, or any combination thereof. In this embodiment, as shown in FIG. 1B, the first frame member 13 is an upper frame member, the second frame member 14 is a lower frame member, and the first frame member 13 and the second frame member 14 are engaged by the frame member. (click 25) and lock (screw 26) and connected to each other, Therefore, the first frame member 13 and the second frame member 14 can be separated by disassembling the engaged latch 25 and the locking screw 26. The material of the first frame member 13 or the second frame member 14 may comprise metal or plastic. For example, the first frame member 13 / the second frame member 14 are a plastic frame / a plastic frame, a plastic frame / a metal frame, a metal frame / a plastic frame or a metal frame / a metal frame, and the present invention is not limited.

Referring to FIG. 1A again, the touch display device 1 of the present embodiment further includes two buffer members 161 and 162. The buffer members 161 and 162 are disposed and connected to the second frame member 14. In addition, the second frame member 14 has a protruding portion 141 and an upright portion 142, and the upright portion 142 is connected to the protruding portion 141. In addition, the buffering member 161 is disposed on the second bearing surface 1402 and located between the protruding portion 141 and the display panel 12 . The second frame member 14 can carry the display panel 12 through the buffer member 161 and the second bearing surface 1402, so that the touch panel 11 and the display panel 12 can be opposite to each other. In addition, the cushioning member 162 is disposed between the optical film 175 and the upright portion 142.

The protruding portion 141 of the second frame member 14 has a second side of the second bearing surface 1402, and has a side surface 1411. The side surface 1411 is a sloped surface, and the extending surface of the side surface 1411 has an angle θ with the display panel 12. The angle θ is less than 90 degrees and greater than 0 degrees, preferably between 30 degrees and 60 degrees, and more preferably 45 degrees. The first substrate 121 of the present embodiment has a black matrix (not shown) disposed on one of its circumferences, and the extended surface of the side surface 1411 is connected to an edge of the black matrix near the center of the display panel 12. Therefore, when the touch display device 1 is obliquely viewed from the touch surface 111 of the touch panel 11 at an angle θ (for example, 45 degrees), the line of sight may pass through a black matrix near an edge of the center of the display panel 12, and the line of sight is not A second frame member 14 having a color (e.g., black) will be seen. In addition, the side surface 1411 can also be a curved surface, depending on the design requirements.

The back panel 15 can accommodate a touch panel 11 , a display panel 12 , a first frame member 13 , and a second frame member 14 . The back panel 15 is engaged with the first frame member 13 or the second frame member 14 . In this embodiment, the backplane 15 carries the backlight module 17 and is connected to the backlight module 17 and the upright portion 142 of the second frame member 14, respectively. The second frame member 14 can be connected to the back plate 15 in a snapping or locking manner, for example.

In the touch display device 1 of the present invention, the touch panel 11 is carried by the first bearing surface 1301 of the first frame member 13 and by the second frame member 14 connected to the first frame member 13. The second bearing surface 1402 carries the display panel 12 such that the touch panel 11 and the display panel 12 are opposite to each other. Thereby, compared with the conventional one, since the first frame member 13 and the second frame member are used The touch panel 11 and the display panel 12 are respectively attached to the touch panel 11 and the touch panel 11 is adhered to the display panel 12 without using an adhesive layer. Therefore, when the touch panel 11 or the display panel 12 fails and needs to be reworked, The special tool can easily separate the touch panel 11 and the display panel 12, and thus the touch panel 11 and the display panel 12 are not broken to cause greater loss.

In addition, please refer to FIG. 2A to FIG. 2C respectively, which are schematic cross-sectional views of the touch display devices 1a to 1c of different embodiments.

As shown in FIG. 2A , the main difference between the touch display device 1 and the touch display device 1 is that the touch display device 1 a has no adhesive member 24 , but the touch display device 1 a further includes a flexible circuit board 18 and a Protective member 19. The flexible circuit board 18 is bonded to one side of the lower surface of the touch panel 11. The flexible circuit board 18 is connected to the touch panel 11 and has a connection region, and the connection region is located between the first bearing surface 1301 of the first frame member 13a and the touch panel 11 . The flexible circuit board 18 can be, for example, a circuit film of a Chip On Film (COF) technology, and the touch panel 11 can be electrically connected to a driving circuit board (not shown) for driving the touch panel 11. Since the connection area between the flexible circuit board 18 and the touch panel 11 is located between the first frame member 13a and the touch panel 11, a support force can be provided when the flexible circuit board 18 is bent and pulled, thereby avoiding a soft circuit. The joint of the plate 18 is pulled to break its structure and function. In addition, the protective member 19 receives the back plate 15a and is connected to one side of the touch panel 11. The flexible circuit board 18 has at least one bent portion 181, and the bent portion 181 is located between the protector 19 and the first frame member 13a, the second frame member 14a, and the back plate 15a.

In addition, as shown in FIG. 2B, the main difference from the touch display device 1 is that, in this embodiment, the touch display device 1b further includes a protection member 2, and the protection member 2 can accommodate the back plate 15 and It is connected to the upright portion 131 of the first frame member 13. The protector 2 protects the internal components of the touch display device 1b.

In addition, as shown in FIG. 2C, the main difference from the touch display device 1b is that the touch display device 1c includes a first protective member 21 and a second protective member 22 in two parts. The first protection member 21 is connected to the second protection member 22 and houses the back plate 15. The first protection member 21 has a recess 211. The second protection member 22 has a protrusion 221 disposed in cooperation with the recess 211, so that the first protection member 21 and the second protection member 22 can be coupled to each other. In addition, comparing the touch display device 1c of FIG. 2C with the touch display device 1b of FIG. 2B, The display device 1c has a first protection member 21 and a second protection member 22, and the height of the upright portion 131 of the first frame member 13c of the touch display device 1c in the second direction Y is lower than the first of the touch display device 1b. The upright portion 131 of the frame member 13 allows the first protection member 21 to be engaged with the upright portion 131 of the first frame member 13c, thereby making the surface 212 of the first protection member 21 and the touch surface of the touch panel 11 111 is substantially on the same plane. Therefore, the touch display device 1c has a narrower frame in the first direction X than the touch display device 1b, so that the touch display device 1c is more beautiful.

The technical features of the other components of the touch display device 1a, 1b, and 1c can be referred to the same components of the touch display device 1 and will not be described again.

In summary, the touch display device according to the present invention carries the touch panel by the first bearing surface of the first frame member and the second frame member by the second frame member connected to the first frame member. The carrying surface carries the display panel such that the touch panel and the display panel are opposite to each other. Therefore, compared with the conventional one, since the first frame member and the second frame member respectively carry the touch panel and the display panel, and the touch panel is adhered and fixed on the display panel without using an adhesive layer, when touched When the control panel or the display panel fails and needs to be reworked, the touch panel and the display panel can be easily separated without special tools, so that the touch panel and the display panel are not broken and cause greater damage. Therefore, the touch display device of the present invention has the advantage of being easy to rework.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of this creation shall be included in the scope of the appended patent application.

1‧‧‧Touch display device

11‧‧‧Touch panel

111‧‧‧ touch surface

12‧‧‧ display panel

121‧‧‧First substrate

122‧‧‧second substrate

123, 124‧‧‧ Optical film

13‧‧‧ first frame

1301‧‧‧First bearing surface

131, 142‧‧‧ erect

14‧‧‧ second frame

1402‧‧‧Second bearing surface

141‧‧‧Protruding

1411‧‧‧ side

15‧‧‧ Backplane

161, 162‧‧‧ cushioning parts

17‧‧‧Backlight module

171‧‧‧reflector

172‧‧‧Light guide plate

173~175‧‧‧Optical diaphragm

23‧‧‧ functional film

24‧‧‧Adhesive parts

D1, d2‧‧‧ shortest distance

D3‧‧‧Width

D4‧‧‧distance

X‧‧‧ first direction

Y‧‧‧second direction

Θ‧‧‧ angle

Claims (10)

A touch display device includes: a display panel; a touch panel disposed on the display panel; a first frame member adjacent to the display panel and having a first bearing surface, the first bearing surface The second frame member is connected to the first frame member and has a second bearing surface, the second bearing surface carries the display panel; and a back panel that accommodates the touch panel The display panel is joined to the first frame member or the second frame member. The touch display device of claim 1, wherein the second frame member has a protruding portion, the protruding portion has the second bearing surface and a side surface, and the extension of the side surface is provided between the display panel and the display panel An angle that is less than 90 degrees and greater than 0 degrees. The touch display device of claim 1, further comprising: a buffering member disposed between the second bearing surface and the display panel. The touch display device of claim 1, wherein the connection manner of the first frame member and the second frame member comprises engaging, locking or bonding, or any combination thereof. The touch display device of claim 1, wherein the material of the first frame member or the second frame member comprises metal or plastic. The touch display device of claim 1, further comprising: a flexible circuit board coupled to the touch panel and having a connection region, the connection region being located on the first bearing surface of the first frame member Between the touch panel and the touch panel. The touch display device of claim 6, further comprising: a protective member that accommodates the backplane and is connected to one side of the touch panel, the flexible circuit board having at least one bent portion, The bent portion is located between the protection member and the first frame member, the second frame member and the back plate. The touch display device of claim 1, further comprising: a first protection member and a second protection member, the first protection member being coupled to the second protection member and accommodating the back plate. The touch display device of claim 8, wherein the first frame member has an upright portion, and the first protection member is coupled to the upright portion. The touch display device of claim 9, wherein a surface of the first protective member and the touch surface of the touch panel are substantially in the same plane.